matrix[8] = 1;
}
-void avfilter_add_matrix(const float *m1, const float *m2, float *result)
-{
- int i;
- for (i = 0; i < 9; i++)
- result[i] = m1[i] + m2[i];
-}
-
-void avfilter_sub_matrix(const float *m1, const float *m2, float *result)
-{
- int i;
- for (i = 0; i < 9; i++)
- result[i] = m1[i] - m2[i];
-}
-
-void avfilter_mul_matrix(const float *m1, float scalar, float *result)
-{
- int i;
- for (i = 0; i < 9; i++)
- result[i] = m1[i] * scalar;
-}
-
-int avfilter_transform(const uint8_t *src, uint8_t *dst,
+int ff_affine_transform(const uint8_t *src, uint8_t *dst,
int src_stride, int dst_stride,
int width, int height, const float *matrix,
enum InterpolateMethod interpolate,
float *matrix
);
-/**
- * Add two matrices together. result = m1 + m2.
- *
- * @param m1 9-item transformation matrix
- * @param m2 9-item transformation matrix
- * @param result 9-item transformation matrix
- */
-void avfilter_add_matrix(const float *m1, const float *m2, float *result);
-
-/**
- * Subtract one matrix from another. result = m1 - m2.
- *
- * @param m1 9-item transformation matrix
- * @param m2 9-item transformation matrix
- * @param result 9-item transformation matrix
- */
-void avfilter_sub_matrix(const float *m1, const float *m2, float *result);
-
-/**
- * Multiply a matrix by a scalar value. result = m1 * scalar.
- *
- * @param m1 9-item transformation matrix
- * @param scalar a number
- * @param result 9-item transformation matrix
- */
-void avfilter_mul_matrix(const float *m1, float scalar, float *result);
-
/**
* Do an affine transformation with the given interpolation method. This
* multiplies each vector [x,y,1] by the matrix and then interpolates to
* @param fill edge fill method
* @return negative on error
*/
-int avfilter_transform(const uint8_t *src, uint8_t *dst,
+int ff_affine_transform(const uint8_t *src, uint8_t *dst,
int src_stride, int dst_stride,
int width, int height, const float *matrix,
enum InterpolateMethod interpolate,
for (i = 0; i < 3; i++) {
// Transform the luma and chroma planes
- ret = avfilter_transform(in->data[i], out->data[i], in->linesize[i], out->linesize[i],
- plane_w[i], plane_h[i], matrixs[i], interpolate, fill);
+ ret = ff_affine_transform(in->data[i], out->data[i], in->linesize[i],
+ out->linesize[i], plane_w[i], plane_h[i],
+ matrixs[i], interpolate, fill);
if (ret < 0)
return ret;
}